The ETC S4WRDCII-A Source 4WRD Color II is a static wash LED retrofit designed to convert an existing Source Four incandescent profile into a color-mixing fixture without replacing the entire luminaire. This approach is well suited to venues that want to modernize installed inventory, reduce maintenance, and expand creative flexibility while keeping familiar Source Four bodies in service. With RGBA color mixing and DMX control, it supports fast scene changes and a broader range of stage looks than a traditional lamp-and-gel workflow.

For theatres, houses of worship, schools, hospitality spaces, retail environments, exhibition centers, meeting rooms, and clubs, this upgrade offers a practical path to lower energy use and fewer service interruptions. The retrofit is nondestructive and can be completed in less than five minutes, making it useful for phased upgrades across larger systems. Source 4WRD Color II uses switched 100–240 VAC power and is intended for installations that need dependable color wash performance from existing Source Four infrastructure.